TEA1081 Philips Semiconductors, TEA1081 Datasheet
TEA1081
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TEA1081 Summary of contents
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... DATA SHEET TEA1081 Supply circuit with power-down for telephone set peripherals Product specification Supersedes data of February 1988 File under Integrated Circuits, IC03 Philips Semiconductors INTEGRATED CIRCUITS September 1994 ...
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... DIP8 TEA1081T SO8 September 1994 GENERAL DESCRIPTION The TEA1081 is an integrated circuit for use in line-powered telephone sets to supply peripheral circuits for extended dialling and/or loudspeaker facilities. The IC uses a part of the surplus line current normally drawn by the voltage regulator of the speech/transmission circuit. A power-down function isolates the IC from its load and reduces the input current ...
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... September 1994 TR1 0 1 TEA1081 Fig.1 Block diagram. DESCRIPTION 3 Product specification TEA1081 7 QS TR2 8 SP POWER- 4 DOWN PD REFERENCE CURRENT 6 VA MLC166 page TEA1081 MLC167 Fig.2 Pin configuration ...
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... Supply terminals: QS and VA (pins 7 and 6) Peripheral devices are supplied from QS (pin 7). Two modes of output voltage regulation are available. O UTPUT VOLTAGE FOLLOWS LINE VOLTAGE The TEA1081 operates in this mode when there is no external resistor (R ) between QS and VA (see Fig.6). V September 1994 The output voltage follows the line voltage and is expressed by formula (2) ...
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... V (V) The input impedance between LN and VN at audio LN frequencies is determined by the filter elements C (between pins 1 and 5), R internal resistor R At audio frequencies the TEA1081 behaves as an inductor of the value 2.2 F and R L Amplifier decoupling: AD (pin 3) (pins 1 and 7) To ensure stability decoupling capacitor is O required between AD (pin 3) and LN (pin 1) ...
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... T operating ambient temperature amb T storage temperature stg T junction temperature j THERMAL CHARACTERISTICS SYMBOL R thermal resistance from junction to ambient in free air th j-a TEA1081 TEA1081T (mounted on a printed-circuit board of 50 800 handbook, halfpage P tot (mW) (1) 600 400 (2) 200 (1) TEA1081. (2) TEA1081T. ...
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... 3.0 100 100 100 100 20 6 0.5 = 1.5 V 1.1 LN(rms 0 dBm dBm 600 83 L 1.5 TEA1081 = 25 C; amb MAX. UNIT 12 dBm dBm dBmp 0.3 ...
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... SPEECH CIRCUIT 8 Fig.6 Application diagram. 8 Product specification MIN. TYP 2 100 TEA1081 TEA1081 MAX. UNIT PERIPHERAL CIRCUITS MLC171 ...
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... Supply circuit with power-down for telephone set peripherals PACKAGE OUTLINES handbook, full pagewidth 3.60 3.05 1.15 max 8 1 Dimensions in mm. Fig.7 Plastic dual in-line package; 8 leads (300 mil); DIP8; SOT97-1. September 1994 9.8 9.2 3.2 max 4.2 max 0.51 min 2.54 0.254 M 0.53 (3x) max 1.73 max 5 6.48 6. Product specification TEA1081 8.25 7.80 0.38 max 7.62 10.0 8.3 MSA252 - 1 ...
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... Philips Semiconductors Supply circuit with power-down for telephone set peripherals handbook, full pagewidth S 0.7 0 pin 1 index 1.27 Dimensions in mm. Fig.8 Plastic small outline package; 8 leads; body width 3.9 mm (SO8; SOT96-1). September 1994 5.0 4.8 0 1.45 1.25 4 0.25 0.10 0.49 0.25 M 0.36 (8x) 10 Product specification TEA1081 4.0 3.8 A 6.2 5.8 0.7 0.6 1.75 0.25 1.35 0.19 1 detail A MBC180 - 1 ...
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... C. (Pulse-heated soldering is not recommended for SO packages.) For pulse-heated solder tool (resistance) soldering of VSO packages, solder is applied to the substrate by dipping extra thick tin/lead plating before package placement. 11 Product specification TEA1081 - BY HAND HELD SOLDERING ) ...
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... Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. September 1994 12 Product specification TEA1081 ...
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... Philips Semiconductors Supply circuit with power-down for telephone set peripherals September 1994 NOTES 13 Product specification TEA1081 ...
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... Philips Semiconductors Supply circuit with power-down for telephone set peripherals September 1994 NOTES 14 Product specification TEA1081 ...
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... Philips Semiconductors Supply circuit with power-down for telephone set peripherals September 1994 NOTES 15 Product specification TEA1081 ...
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... United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. (800)234-7381, Fax. (708)296-8556 Uruguay: Coronel Mora 433, MONTEVIDEO, Tel. (02)70-4044, Fax. (02)92 0601 For all other countries apply to: Philips Semiconductors, International Marketing and Sales, Building BE-p, P.O. Box 218, 5600 MD, EINDHOVEN, The Netherlands, Telex 35000 phtcnl, Fax. +31-40-724825 SCD34 © ...